Dolphin Tangled in Fishing Line Approaches Divers for Help [View all]
A group of divers were surprised to see a single Bottlenose dolphin approach and linger among them, though it appeared unable to swim normally.
Only after the dolphin continued to circle near around him so insistently did diving instructor Keller Laros begin to realize the animal wasn't merely being curious -- it was actually asking them for help. The dolphin's movements were restricted because it had become entangled in fishing line and a hook was lodged in its pectoral fin.
Incredibly, the wild dolphin then appears to readily comply with Laros's efforts to help, positioning its body to make his work easier, seeming to give full trust in the terrestrial stranger.
Thankfully, Laros was able to remove the line and hook from the dolphin, very likely saving the animal's life.
http://www.treehugger.com/ocean-conservation/dolphin-tangled-fishing-line-approaches-divers-help-video.html